Formation of voids within components formed from porous substrates
AssigneeUnited Technologies Corporation
InventorsPaul Sheedy, Wayde R. Schmidt
Life of this patent
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Abstract
A method of creating a component comprises forming a substrate and depositing a template material within the substrate, such that there are a plurality of template member. The component is heated to a temperature above a melting point of the template material, such that the template material wicks into a porosity of the substrate and forms a component with voids. An average hydraulic diameter of the voids is less than 1 millimeter. A component formed by the method, and the component itself are also disclosed.
Claims20
A component formed by a method comprising:
- forming a substrate and depositing a template material within said substrate, such that there are a plurality of template members;
- and
- heating said component to a temperature above a melting point of said template material, such that said template material wicks into a porosity of said substrate and forms a component with voids, wherein an average hydraulic diameter of said voids is less than 1 millimeter;
- wherein a shell of silicon is formed around said voids to insulate, at least in part, the matrix material.
A component comprising:
- a body formed of a matrix material and having a plurality of voids with an average hydraulic diameter of said voids being less than 1 millimeter, wherein said matrix includes a substrate material infiltrated by a silicon template material, said substrate material is further provided with metallic particles selected from a group of molybdenum, titanium, vanadium, chromium, cobalt, nickel, zirconium, niobium, hafnium, tantalum, tungsten, platinum, yttrium and boron, and said component includes a metal silicide reaction product of said metallic particles and said silicon template material.
A component formed by a method comprising:
- forming a substrate and depositing a template material within said substrate, such that there are a plurality of template members;
- and
- heating said component to a temperature above a melting point of said template material, such that said template material wicks into a porosity of said substrate and forms a component with voids, wherein an average hydraulic diameter of said voids is less than 1 millimeter;
- wherein said substrate material initially includes a carbon rich polymer derived ceramic matrix and said template material is silicon, such that said component includes a silicon carbide matrix, and wherein said substrate material is further provided with metallic particles, selected from the group of molybdenum, titanium, vanadium, chromium, cobalt, nickel, zirconium, niobium, hafnium, tantalum, tungsten, platinum, yttrium and boron, such that said component also includes corresponding metal silicide regions.
Dependencies are inferred from the claim text.